The following units and commanders fought in the Defense of the Great Wall of the Second Sino-Japanese War. List as of 20 March 1933. China Military Committee (Peking branch) - Chairman Chiang Kai-shek, He Yingqin (deputy) 1st Army Group - Commander in chief - Yu Xuezhong (defends Tianjin, Daigu and garrisons Tianjin-Pukou Railroad) Chief staff officer Liu Zhonggan 51st Army - Yu Xuezhong 113th Division - Li Zhentang 111th Division - Dong Yingbin 114th Division - Chen Guanqun 118th Division - Du Jiwu 1st Cavalry Division - Zhang Chengde 2nd Army Group - Commander in chief Shang Zhen(defense Luan River and the Lengkou Pass) Chief staff officer - Lu Ji 32nd Army - Shang Zhen 139th Division - Huang Guanghua 84th Division - Gao Guizi 141st Division - Gao Hongwen 142nd Division - Li Xingcun 4th Cavalry Division - Guo Xipeng 57th Army - He Zhuguo 115th Division - Yao Dongfan 109th Division - He Zhuguo 120th Division - Chang Jingwu 3rd Cavalry Division - Wang Jifeng 3rd Army Group - Commander in chief Song Zheyuan(defense of the Xifengkou Pass ) Vice-commander in chief - Pang Bingxun Qin Dechun Chief staff officer - Zhang Weifan 29th Army - Song Zheyuan 37th Division - Feng Zhian 38th Division - Zhang Zizhong 2nd Temporary Division - Liu Ruming 40th Army - Pang Bingxun 5th Cavalry Division - Li Fu 115th Brigade - Liu Shirong 116th Brigade - Chen Chunrong 4th Army Group - Commander in chief Wan Fulin(assists the 57th Army with three Divisions to defend the Lengkou pass) Chief staff officer - Wang Jingru 53rd Army - Wan Fulin 108th Division - Yang Zhengzhi 10th Division - Shen Ke 106th Division - Shen gram 116th Division - Miao Chengliu 119th Division - Sun Dequan 129th Division - Wang Yongsheng 130th Division - Zhu Hongxun, Yu Zhaolin 2nd Cavalry Division - Huang Xiansheng 8th Army Group - Commander in chief Yang Jie (defense of the Gubeikou pass) 17th Army - Xu Tingyao 2nd Division - Huang Jieyan 25th Division - Guan Linzheng 1st Cavalry Brigade - Li Jiading 67th Army - Wang Yizhe (defense of the Gubeikou pass) 107th Division - Zhang Zhengfang 110th Division - He Lizhong 112th Division - Zhang Tingshu 117th Division - Weng Zhaoyuan 26th Army - Xiaozhi Chu 44th Division Commander Xiaozhi Chu (concurrently) Preparation Regiment (Turned over to the Peking branch of the Military Committee to